(*****************************************************************************

  Liquidsoap, a programmable audio stream generator.
  Copyright 2003-2022 Savonet team

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details, fully stated in the COPYING
  file at the root of the liquidsoap distribution.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 *****************************************************************************)

open Mm

(** Resampling module for any Frame.content *)

type samplerate_converter =
  samplerate:int ->
  Frame_content.Audio.data ->
  int ->
  int ->
  Frame_content.Audio.data * int * int

val samplerate_converter : unit -> samplerate_converter

type wav_converter = bytes -> int -> int -> Frame_content.Audio.data

(** samplesize is in bits.
    Formats: unsigned 8 bit (u8) or
             signed 16 bit little endian (s16le) *)
val from_iff :
  format:Wav_aiff.format -> channels:int -> samplesize:int -> wav_converter

type channels_converter = Frame_content.Audio.data -> Frame_content.Audio.data

val channels_converter :
  Audio_converter.Channel_layout.layout -> channels_converter

val video_scale : unit -> Video.Image.t -> Video.Image.t

type fps = { num : int; den : int }

val video_resample :
  unit ->
  in_freq:fps ->
  out_freq:fps ->
  Frame_content.Video.data ->
  Frame_content.Video.data
